path: root/block/Kconfig
diff options
authorDan Williams <>2017-01-26 20:37:35 -0800
committerDan Williams <>2017-04-20 11:57:52 -0700
commitb0686260fecaa924d8eff2ace94bee70506bc308 (patch)
tree36193b32e9f64ee93c4dd02e29da9256e8930fb7 /block/Kconfig
parentd8f07aee3f2fd959878bf614d4e984900018eb9e (diff)
dax: introduce dax_direct_access()
Replace bdev_direct_access() with dax_direct_access() that uses dax_device and dax_operations instead of a block_device and block_device_operations for dax. Once all consumers of the old api have been converted bdev_direct_access() will be deleted. Given that block device partitioning decisions can cause dax page alignment constraints to be violated this also introduces the bdev_dax_pgoff() helper. It handles calculating a logical pgoff relative to the dax_device and also checks for page alignment. Signed-off-by: Dan Williams <>
Diffstat (limited to 'block/Kconfig')
1 files changed, 1 insertions, 0 deletions
diff --git a/block/Kconfig b/block/Kconfig
index e9f780f..93da7fc 100644
--- a/block/Kconfig
+++ b/block/Kconfig
@@ -6,6 +6,7 @@ menuconfig BLOCK
default y
select SBITMAP
select SRCU
+ select DAX
Provide block layer support for the kernel.